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    Merge videos online for free

    Merge videos online multiple clips into one clean and smooth file. Try the tool right now. 100% local in-browser processing, nothing ever uploaded to our

    Drop your video here

    MP4, WebM, AVI, MOV supported

    Supported formats

    MP4
    AVI
    MOV
    WebM
    MKV

    How it works

    1

    Step 1

    Upload multiple videos

    2

    Step 2

    Reorder if needed

    3

    Step 3

    Download merged video

    Common mistakes

    • Uploading a video file too large for the browser (keep it under 2 GB).
    • Closing the tab before processing finishes: the conversion stops.
    • Using an exotic input format (prefer MP4, WebM, MOV, AVI).
    • Picking a bitrate so low that quality drops noticeably.

    Pro tips

    • Pick H.264 (MP4) for the widest compatibility.
    • For the web, use WebM (VP9/AV1): smaller file at the same quality.
    • Keep the original: processing is local but the download is final.
    • On mobile, plug in the charger for long videos.

    Privacy guaranteed

    Your videos are processed locally in your browser. No files are uploaded to our servers.

    Create compilations — free online, no signup required

    Assemble your best vacation moments, sports events or family memories into one video. Merging combines several video clips into a single continuous file, concatenates sequences in the chosen order, assembles your rushes into a single edit and produces a smooth export with no forced cuts or transitions.

    Also discover our tool to cut video online.

    Technical details

    Join and combine multiple clips into a single sequence: our tool concatenates and assembles your files in the chosen order.

    Why choose our online video merger

    Our online video merger stands out with 100% local processing via FFmpeg.wasm directly in your Chrome, Firefox, Safari or Edge browser — no server upload, no queue, no arbitrary size limit. You get a fast, free, no-signup, watermark-free tool compatible with all your MP4, MOV, AVI, MKV, WebM, FLV, WMV, M4V, 3GP files and more. Perfect for YouTubers, TikTokers, Instagram Reels creators, Premiere Pro editors, DaVinci Resolve, CapCut, Final Cut users, marketing pros, e-learning trainers and individuals who want to merge videos online for free without installing heavy software like HandBrake, Adobe Media Encoder or VLC.

    Cross-device compatibility — PC, Mac, iPhone, Android

    Our video merger works on Windows 10, Windows 11, macOS Ventura, Sonoma, Sequoia, Linux Ubuntu, Debian, Fedora, as well as iOS 16+ (iPhone, iPad), iPadOS, Android 10+ (Samsung Galaxy, Google Pixel, Xiaomi, OnePlus) and even Chrome OS on Chromebook. No native app, no APK, no .exe to download: just open the page in your favorite browser and start processing your videos. Compatible with videos from smartphones (4K HDR, slow-motion), GoPro cameras, DJI drones, OBS screen captures, After Effects exports, Loom screencasts and files downloaded from YouTube, Vimeo, TikTok, Twitch or Twitter/X.

    Privacy, GDPR compliance and video security

    Unlike competing services (Clideo, Kapwing, Veed.io, FlexClip, Online-Convert, Convertio, CloudConvert, FreeConvert, EZGif, Zamzar) that upload your files to remote servers in the US or Asia, our tool processes your entire video in your browser's RAM. Not a single byte is sent over the Internet, ensuring full GDPR, CCPA, LGPD and HIPAA compliance. Perfect for confidential business documents, medical, legal, educational videos, copyrighted content and any personal file you do not want to entrust to any third party.

    Discover all our video tools

    Compress, convert, cut, resize and edit your videos in a few clicks.

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    Complementary tools

    Guides and tutorials

    Frequently asked questions

    How many videos can I merge?

    You can merge as many videos as you want. The only limit is your browser's memory.

    Merge videos online | Convertly Video - fast, simple